(With Sorc's high attack you can deal with the HellFire robe att loss without caring about dmg. Because sorc has high wis, you don't need to worry so much about MP and Fulmi can hit lot of targets withva small MP cost).

@Night-Owl I'd just add some non essentials to that, the following items are by no means needed but if the price doesn't matter, then why not?
Wands: Crystal, recomp (or evocation/retribution)
Scepters: You could add the storms I guess, nice to have for the more damage but is mostly useless
Robe: Nothing to add here, due to the sorcerers ability not relying on att, hellfire is best
Ring: Pyra or pizza are good, but with the price not mattering go hard, get a bracer